// Copyright 2004 The Apache Software Foundation
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain token copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace AspectSharp.Lang.AST
{
	using System;

	/// <summary>
	/// Summary description for LexicalInfo.
	/// </summary>
	[Serializable]
	public struct LexicalInfo
	{
        public static readonly LexicalInfo Empty = new LexicalInfo { Filename = "", Line = -1, StartColumn = -1, EndColumn = -1 };

        public String Filename { get; internal set; }
        public int Line { get; internal set; }
        public int StartColumn { get; internal set; }
        public int EndColumn { get; internal set; }

        public static LexicalInfo Make(String filename, int line, int startCol, int endCol)
        {
            return new LexicalInfo { Filename = filename, Line = line, StartColumn = startCol, EndColumn = endCol };
        }
	}
}
